Finding the Fourth Proportional to 271,814.72, 407,560.56 and 103,347.38

Step by Step Solution

1. Step 1: Write the proportion equation
   271,814.72 : 407,560.56 = 103,347.38 : x
2. Step 2: Convert to fraction form
   271,814.72/407,560.56 = 103,347.38/x
3. Step 3: Cross multiply
   271,814.72x = 407,560.56 × 103,347.38
4. Step 4: Simplify right side
   271,814.72x = 42,120,316,067.33
5. Step 5: Solve for x
   x = 42,120,316,067.33/271,814.72
6. Step 6: Final answer
   x = 154,959.66